<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="adddialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userList" border stripe style="width: 100%">
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username" width="150px"></el-table-column>
        <el-table-column label="邮箱" prop="email" width="200px"></el-table-column>
        <el-table-column label="电话" prop="mobile" width="200px"></el-table-column>
        <el-table-column label="角色" prop="role_name" width="200px"></el-table-column>
        <el-table-column label="状态" width="150px">
          <!-- 根据boole值渲染开关 -->
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="small"
                @click="setRole(scope.row)"
              >分配角色</el-button>
            </el-tooltip>
            <el-tooltip effect="dark" content="编辑" placement="top" :enterable="false">
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="small"
                @click="showEditDialog(scope.row.id)"
              >编辑</el-button>
            </el-tooltip>

            <el-tooltip effect="dark" content="删除" placement="top" :enterable="false">
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="small"
                @click="removeById(scope.row.id)"
              >删除</el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1,2,5,10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>

      <!-- 添加用户的弹层 -->
      <el-dialog title="添加用户" :visible.sync="adddialogVisible" width="50%" @close="adddialogClosed">
        <!-- 内容主题区域 -->
        <el-form :model="addForm" :rules="addFormrules" ref="addFormRef" label-width="90px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="adddialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 编辑用户的弹窗 -->
      <el-dialog
        title="编辑用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
    <!-- 分配角色弹窗 -->
    <el-dialog title="分配角色" :visible.sync="setRoledialogVisible" width="50%" @close="setRoledialogClosed">
      <div>
        <p>当前的用户:{{userInfo.username}}</p>
        <p>当前的角色:{{userInfo.role_name}}</p>
        <p>
          分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleslist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 校验邮箱
    var checkEmail = (rule,value,callback) => {
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
         if (regEmail.test(value)) {
            // 合法的邮箱
            return callback()
          }
           callback(new Error('请输入合法邮箱'));   
    }
    // 校验电话
    var checkMoble = (rule,value,callback) => {
       const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
       if (regMobile.test(value)) {
            // 合法的邮箱
            return callback()
          }
           callback(new Error('请输入合法电话号码'));   
    }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1, //当前页数
        pagesize: 2 //当前每页显示多少条数据
      },
      userList: [],
      total: 0,
      adddialogVisible: false, //控制添加用户弹窗的显示与影藏
      editDialogVisible: false, //控制编辑弹窗的显示与影藏
      editForm: {}, //编辑用户弹窗查询到的用户信息对象
      setRoledialogVisible: false, //控制分配角色的弹窗是否展示
      userInfo: {}, //需要被分配角色的用户信息
      roleslist: [], //所有角色的数据列表
      selectRoleId: '', //下拉选择框选中的角色id
      //编辑校验
      editFormRules: {
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur'},{ validator:checkEmail,trigger:"blur"}],
        mobile: [{ required: true,message: '请输入邮箱',trigger: 'blur'},{ validator:checkMoble,trigger:"blur"}]},
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },

      //添加表单的验证规则对象
      addFormrules: {
        username: [
          { required: true,message: '请输入用户名', trigger: 'blur'},
          { min: 3, max: 10, message: '用户名的长度在3~10个字符',trigger: 'blur' }],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
          { min: 6, max: 15, message: '用户名的长度在6~15个字符', trigger: 'blur'}],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur'},
          { validator:checkEmail, trigger: 'blur'}],
        mobile: [
          {required: true,message: '请输入邮箱',trigger: 'blur'},
          { validator: checkMoble, trigger: 'blur'}]
      }
    }
  },

  created() {
    //进入users页面时就开始渲染页面数据
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userList = res.data.users
      this.total = res.data.total
      //   console.log(res)
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      //   console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newSize) {
      //   console.log(newSize)
      this.queryInfo.pagenum = newSize
      this.getUserList()
    },
    //监听switch开关状态的改变
    async userStateChanged(userinfo) {
      // console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      // console.log(res)

      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新状态成功')
    },
    //监听添加用户对话框的关闭事件
    adddialogClosed() {
      // 对整个表单进行重置，将所有字段值重置为初始值并移除校验结果
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮，添加新用户
    addUser() {
      // 对整个表单进行校验的方法，参数为一个回调函数。
      // 该回调函数会在校验结束后被调用，并传入两个参数：
      // 是否校验成功和未通过校验的字段。若不传入回调函数，则会返回一个 promise
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 200) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.adddialogVisible = false //添加成功后自动关闭添加弹层
        this.getUserList() //重新获取用户列表数据
      })
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      //  console.log(id);
      this.editDialogVisible = true
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户失败')
      }
      this.editForm = res.data //为查询成功的用户赋值
    },
    //监听编辑用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //编辑用户，修改后用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid);
        if (!valid) return
        //发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        // console.log(res)

        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },
    //根据id删除对应的用户信息
    async removeById(id) {
      // console.log(id);
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
          center: true
        }
      ).catch(err => err)
      // 如果用户确认删除，则返回值为confirm
      // 如果用户取消删除，则返回值为cancel
      //  console.log(confirmResult);
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认删除');
      const { data: res } = await this.$http.delete('users/' + id)
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    //展示分配角色弹窗
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }

// 将查询到的所有角色保存在roleslist中
      this.roleslist = res.data
      this.setRoledialogVisible = true
    },
    //点击确定按钮，保存分配的角色
  async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRoleId
        }
      )

      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }

      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoledialogVisible = false
   },
   //监听分配角色对话框的关闭事件
   setRoledialogClosed(){
     this.selectRoleId='',
     this.userInfo={}
   }
  }
}
</script>

<style scoped>
</style>